Behavior of Circular Hollow Steel-Reinforced Concrete Columns under Axial Compression
Source abstract
Abstract
The circular hollow steel-reinforced concrete (HSRC) column consists of an inner circular hollow steel tube and outer circular hollow reinforced concrete (RC). This design provides several advantages, including being lightweight, having a wide sectional profile, and having a high flexural stiffness. This paper aims to investigate the behavior of the circular HSRC columns under axial compression through testing and finite element (FE) modeling. An FE model was established to simulate the circular HSRC columns under axial compression, which was validated against the test data. Additionally, the load distribution and the interface stress between the outer hollow RC and inner steel tube were analyzed. Subsequently, a systematic parametric analysis was conducted on the diameter (d) and thickness (t) of the steel tube; slenderness ratio (λ); strength of concrete (fcu); yield strength of steel tube (fsy), longitudinal rebar (fly), and stirrup (fgy); as well as the stirrup spacing (s). The critical influencing factors of the circular HSRC columns under axial compression were identified. fcu, λ, d, fly, and fsy dramatically influence the bearing capacity, and the stiffness is notably affected by λ and fcu. Finally, three simplified design methods were summarized and evaluated for calculating the bearing capacity of the circular HSRC columns under axial compression.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Structural Load-Bearing Analysis · Structural Behavior of Reinforced Concrete · Structural Engineering and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China
School of Transportation, Civil Engineering & Architecture, Foshan University, Foshan 528051, China
School of Civil Engineering, Dalian Jiaotong University, Dalian 116028, China
Funding
National Natural Science Foundation of China · Science and Technology Project of MHRUD, China · Liaoning Research Project, China
References (23)
Show source-provided references
1. Behavior of octagonal steel-reinforced concrete box columns under compressive load10.1680/jmacr.16.00246 ↗
2. Experimental behavior of box concrete-encased CFST eccentrically loaded column10.1680/macr.13.00067 ↗
3. Optimum confining effect in steel composite hollow RC column with inner tube under compressive load10.1680/macr.13.00304 ↗
4. Behavior of a hollow RC column with an internal tube10.1680/macr.2008.62.1.25 ↗
5. Compressive strength of circular hollow reinforced concrete confined by an internal steel tube10.1016/j.conbuildmat.2010.02.022 ↗
6. Behavior of circular concrete columns reinforced with hollow composite sections and GFRP bars10.1016/j.marstruc.2020.102785 ↗
7. Behavior of slender square hollow steel-reinforced concrete columns under eccentric compression10.1016/j.jobe.2021.103133 ↗
8. (2004). Bridge Design, Part 6: Steel and Composite Construction (Standard No. AS 5100.6-2004: 2004).
9. (2005). Specification for Structural Steel Buildings (Standard No. ANSI/AISC 360-05: 2005).
10. (2010). Technical Specification for Concrete-Filled Steel Tubular Structures (Standard No. DBJ/T 13-51-2010: 2010). (In Chinese).
11. Mat, S.C., Mitani, I., and Kawano, A. (1997, January 14–18). AIJ Design method for concrete filled steel tubular structures. Proceedings of the International Conference on Composite Construction Conventional and Innovative, Innsbruck, Austria.
12. (2004). Design of Composite Steel and Concrete Structures—Part 1–1: General Rules and Rules for Buildings (Standard No. EN1994-1-1: 2004).
13. Experimental investigation of CFRP confined hollow core Reactive Powder Concrete columns10.1016/j.conbuildmat.2018.04.087 ↗
14. New connection system for confined concrete columns and beams. I I: Theoretical Modeling10.1061/(ASCE)0733-9445(2008)134:12(1800) ↗
15. Circle concrete-encased concrete-filled steel tube (CFST) stub columns subjected to axial compression10.1680/jmacr.15.00359 ↗
16. Hibbitt, K., and Sorenson, I. (ABAQUS, 2014). ABAQUS, Version 6.14: Theory Manual, Users’ Manual, Verification Manual and Example Problems Manual.
17. Han, L.H. (2016). Concrete Filled Steel Tubular Structures—Theory and Practice, Science Press. [3rd ed.].
18. Guo, Z.H., and Shi, X.D. (2013). Principle and Analysis of Reinforced Concrete, Tsinghua University Press. [3rd ed.].
19. (2011). Building Code Requirements for Structural Concrete and Commentary (Standard No. ACI318-11: 2011).
20. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements10.1016/0008-8846(76)90007-7 ↗
21. Effects of confinement in square hollow concrete column sections
22. (2020). Technical Specification for Steel Tube-Reinforced Concrete Column Structures (Standard No. T/CECS 188-2019: 2020). (In Chinese).
23. (2015). Code for Design of Concrete Structures (Standard No. GB50010-2010: 2015). (In Chinese).